What are polyphenols and why do they matter?

Polyphenols are the antioxidant compounds in real olive oil responsible for its bitterness and pepper. They help protect blood lipids from oxidative stress, an effect authorised by the European Food Safety Authority, and are a major reason the Mediterranean diet supports heart and brain health.

How much polyphenol does WOW Longevity olive oil contain?

WOW Longevity delivers 190 mg of polyphenols per 15 ml serving, far above typical supermarket olive oils, which are often largely stripped of them.

How do you take high-polyphenol olive oil?

One 15 ml spoonful a day, taken neat or poured raw over food just before serving. Avoid cooking with it, as heat destroys the polyphenols.

Does olive oil actually reduce inflammation?

The science · 5 min read · 2026-07-14

Yes, the evidence is reasonably good. High-polyphenol olive oil lowers markers of inflammation such as C-reactive protein in human trials, and its polyphenol oleocanthal inhibits the same COX enzymes that ibuprofen does. The effect depends on the oil being high in polyphenols.

Key points

Oleocanthal acts on the COX-1 and COX-2 enzymes, the same pathway as ibuprofen.
Human trials link high-polyphenol olive oil with lower CRP and IL-6, both inflammation markers.
Low-polyphenol and refined oils show little of this effect.
This is a dietary pattern, not a drug. It is prevention, not treatment.

Chronic, low-grade inflammation is the common thread running through heart disease, type 2 diabetes, and much of what we call ageing. It is quiet, it does not hurt, and it is measurable in blood. So the question of whether a food can move it is not a soft one.

The mechanism is real

Most foods marketed as anti-inflammatory have no named mechanism at all. Olive oil does. Its polyphenol oleocanthal inhibits the COX-1 and COX-2 enzymes, which is precisely how ibuprofen works, a finding published in Nature in 2005 and covered in oleocanthal. It is the compound behind the peppery catch in a fresh, high-phenolic oil.

What the human data shows

Trials feeding people high-polyphenol olive oil have reported reductions in C-reactive protein and interleukin-6, two standard inflammation markers, compared with low-polyphenol oil. The comparison matters enormously: it is not olive oil versus nothing, it is high-polyphenol versus low. The fat is the same. The polyphenols are the variable, and the polyphenols are what move the needle.

The honest limits

These are modest changes in blood markers, not the disappearance of disease, and they are measured over weeks in small groups. A spoonful of oil is not a treatment for an inflammatory condition and should never replace medication. What it is, is one of the few genuinely evidence-backed dietary levers on background inflammation, and it costs you thirty seconds a day.

If your oil is smooth and buttery, you are getting the calories and very little else. The bitterness is the signal, as explained in polyphenols: the whole point of olive oil.

Common questions

Does olive oil reduce inflammation?

High-polyphenol extra virgin olive oil lowers inflammation markers such as C-reactive protein in human trials, and its oleocanthal inhibits the same COX enzymes as ibuprofen. Refined or low-polyphenol oils show little effect.

How much olive oil should I take for inflammation?

The daily intakes studied are typically one to four tablespoons of extra virgin olive oil. What matters most is that the oil is genuinely high in polyphenols and eaten raw.

Is olive oil better than anti-inflammatory supplements?

It is a whole food with a named mechanism and human trial data, which is more than can be said for most supplements. It is not a substitute for medical treatment of an inflammatory condition.

Keep reading

WOW Longevity high-polyphenol olive oil